
def longin_front():
    """前台登录"""
    username = '13800000001'  #局部变量
    # password = '123456'
    print(username,password)


def login_back():
    username = 'admin'    # 局部变量
    password = '123456'
    print(username,password)


if __name__ == '__main__':
    password = '666666'  # 全局变量
    longin_front()
    login_back()